How relevant is “show don’t tell” with children’s picturebooks?

Particularly targeting up to 8 year olds. I know this is an overused and misunderstood tip sometimes but I’m curious what experts on children’s literature feel about it. Particularly when the illustrations in picturebooks also do some of the heavylifting of “showing” as well as children sometimes need to be told rather than submerged in metaphors and descriptions. How much showing vs telling should I do in my Ms?